Definitions of preserve:

• noun:   a reservation where animals are protected
• noun:   a domain that seems to be specially reserved for someone

  Example: "Medicine is no longer a male preserve"

• noun:   fruit preserved by cooking with sugar
• verb:   prevent (food) from rotting

  Example: "Preserved meats"

• verb:   keep undisturbed for personal or private use for hunting, shooting, or fishing

  Example: "Preserve the forest and the lakes"

• verb:   to keep up and reserve for personal or special use
• verb:   keep in safety and protect from harm, decay, loss, or destruction

  Example: "We preserve these archeological findings"

• verb:   maintain in safety from injury, harm, or danger
• verb:   keep or maintain in unaltered condition; cause to remain or last

  Example: "Preserve the peace in the family"